Howard Porter Books

Las pruebas de Shazam

By Howard Porter, Judd Winnick

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Human Torch by Karl Kesel and Skottie Young

By Howard Porter, Skottie Young, Karl Kesel, Joseph Dodd, Paco Medina

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JLA Vol. 1

By Grant Morrison

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Relive the legendary 1990s JLA series, written by comics mastermind Grant Morrison (FINAL CRISIS) with stunning art by Howard Porter and others, in this amazing oversized softcover collecting JLA #...

Injustice Gods among Us Year Four Volume 1

By Brian Buccellato, Howard Porter, Bruno Redondo, Mike S. Miller

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New World Order

By Howard Porter, Grant Morrison

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Flash

By Howard Porter, Joshua Williamson, Carmine Di Giandomenico

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Trials of Shazam

By Howard Porter, Judd Winick

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Flash Year 1

By Howard Porter, Joshua Williamson

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Batman: One Bad Day: Bane

By Joshua Williamson

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A PAST, PRESENT, AND FUTURE DESTROYED BY VENOM!2023 Eisner Nominee - Best Limited SeriesBane broke the Bat—he’s one of the only villains to ever truly vanquish the Dark Knight—but...

Deathstroke Inc. Vol. 1: King of the Super-Villains

By Joshua Williamson

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DC’s deadliest assassin gets a major upgrade, a new mission, and a new partner…Black Canary? Slade Wilson joins a secret organization to take down the biggest villain!After suffering t...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.